CN221102340U

CN221102340U - Battery module and battery pack

Info

Publication number: CN221102340U
Application number: CN202322685281.6U
Authority: CN
Inventors: 熊凤生
Original assignee: Eve Energy Co Ltd
Current assignee: Eve Energy Co Ltd
Priority date: 2023-10-08
Filing date: 2023-10-08
Publication date: 2024-06-07
Anticipated expiration: 2033-10-08

Abstract

The utility model discloses a battery module, which comprises at least two module blocks arranged in parallel, wherein each module block comprises a plurality of electric cores which are arranged in sequence, the electric cores of two adjacent module blocks are aligned one by one, and a group of polar posts is arranged at the adjacent ends of the two electric cores aligned by the two adjacent module blocks; the middle aluminum row connects a group of pole columns in series so as to connect two aligned battery cores of two adjacent module blocks; an intermediate FPC connected to the intermediate aluminum row; the two rows of poles at the outermost sides of the two outer module blocks are a first pole row and a second pole row respectively; the positive and negative poles of the first pole row are self-connected, and the positive and negative poles of the second pole row are self-connected, so that all the electric cores of the two module blocks form a series circuit; the battery pack comprises a battery module and a box body; the battery module is arranged in the box body; the adjacent pole posts between the adjacent module blocks share one middle aluminum row, one middle aluminum row corresponds to one middle FPC, the original use amount of the two FPCs is reduced to one, and therefore the process is simplified, and the cost is reduced.

Description

Battery module and battery pack

Technical Field

The utility model relates to the technical field of batteries, in particular to a battery module and a battery pack.

Background

The battery pack generally includes a plurality of battery modules, and the CCS collection circuit of each battery module is generally separately configured for signal collection of each battery module.

Therefore, CCS acquisition circuits of each battery module are independently and separately designed, the number of FPC is increased by the design, and production cost and process are increased.

Disclosure of utility model

In order to overcome at least one defect in the prior art, the utility model provides a battery module and a battery pack, wherein two adjacent poles of two adjacent cells of two adjacent module blocks share one middle aluminum row, and one middle aluminum row correspondingly uses one middle FPC, so that the using amount of the two FPCs is reduced to one, thereby simplifying the process and reducing the cost.

The utility model adopts the technical proposal for solving the problems that:

A battery module, comprising:

The battery module comprises at least two parallel module blocks, wherein each module block comprises a plurality of battery cores which are sequentially arranged, the battery cores of two adjacent module blocks are aligned one by one, and a group of polar posts is arranged at the adjacent ends of the two battery cores of which the two adjacent module blocks are aligned;

the middle aluminum row is used for connecting a group of the polar posts in series so as to connect the two aligned electric cores of the two adjacent module blocks;

an intermediate FPC connected to the intermediate aluminum row;

The two rows of poles at the outermost sides of the two outer side module blocks are a first pole row and a second pole row respectively; the positive pole and the negative pole of each pole of the first pole row are connected, and the positive pole and the negative pole of each pole of the second pole row are connected, so that all the electric cores of the two module blocks form a series circuit.

Further, the method comprises the steps of,

In the arrangement direction of the battery cells, one end is the front end of the module block, and the other end is the rear end of the module block;

When the number of the electric cores of the module block is even, the poles of the electric cores at the front end and the rear end of the first pole row are respectively used for being connected with an external circuit;

The solar cell further comprises an outer aluminum row, wherein the other poles of the first pole row are in pairs and are connected with one another, and the outer aluminum row connects one group of poles of the first pole row; the outer aluminum row connects one group of the poles of the second pole row;

The solar cell module further comprises two outer FPC, wherein one outer FPC is connected with an outer aluminum row of the first pole row and the pole of the first pole row for being connected with an external circuit; the other outside FPC is connected with an outside aluminum row of the second pole row;

Or alternatively

When the number of the electric cores of the module block is an odd number, the poles of the electric cores at the front end of the first pole row and the poles at the rear end of the second pole row are respectively used for being connected with an external circuit;

The solar cell further comprises an outer aluminum row, wherein the other poles of the first pole row are in pairs and are connected with one another, and the outer aluminum row connects one group of poles of the first pole row; the other poles of the second pole row are two by two in one group, and the outer aluminum row connects one group of poles of the second pole row;

The high-voltage power supply further comprises two outer FPC, wherein one outer FPC is connected with an outer aluminum row of the first pole row and the pole of the first pole row, and the pole is connected with an external circuit; the other outside FPC is connected to the outside aluminum row of the second pole row and the outside FPC of the pole, which is connected with an external circuit, of the second pole row.

Further, the aluminum alloy also comprises an external aluminum row;

The external aluminum row is connected to the pole connected with an external circuit;

And the outer FPC is connected with the external aluminum row.

Further, the alloy also comprises nickel sheets;

the middle FPC is connected to the middle aluminum row through the nickel sheet;

The outside FPC is connected to the outside aluminum row and the external aluminum row through the nickel plate.

Further, the middle FPC and the outer FPC are provided with output ends;

The output end is provided with a fuse;

And/or the number of the groups of groups,

The output end is provided with a connector.

Further, the fuse is a patch fuse.

Further, the utility model also comprises a reinforcing plate,

The output end is arranged on the reinforcing plate so that the output end is supported.

Further, the middle aluminum row is of a square structure, and the width dimension of the middle aluminum row of the square structure in the thickness direction of the battery cell is smaller than the thickness dimension of the battery cell.

Further, the plastic sucking support is arranged at the top of the module block, and the middle aluminum row, the middle FPC, the outer aluminum row, the outer FPC and the outer aluminum row are arranged on the plastic sucking support.

A battery pack comprises a battery module and a box body, wherein the battery module is arranged in the box body.

In summary, the battery module and the battery pack provided by the utility model have the following technical effects:

1) Two adjacent poles of two adjacent electric cores of two adjacent module blocks share one middle aluminum row, one middle aluminum row correspondingly uses one middle FPC, so that the use amount of the two FPCs is reduced to one, the process is simplified, and the cost is reduced;

2) The arrangement of the reinforcing plate ensures the installation and support of each component on the output end of the middle FPC3 and the outer FPC5, and improves the convenience of the installation of the end part of the FPC.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is an enlarged view of FIG. 1 at A;

Fig. 3 is a schematic diagram of a connection loop of each cell of each module of the present utility model.

Wherein the reference numerals have the following meanings:

1. A module block; 11. a battery cell; 2. an intermediate aluminum row; 3. an intermediate FPC; 4. an outer aluminum row; 5. an outer FPC; 6. externally connecting an aluminum row; 7. nickel flakes; 8. a fuse; 9. a connector; 10. a reinforcing plate; 12. and (5) a plastic sucking bracket.

Detailed Description

For a better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.

In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Example 1

Referring to fig. 1 and 2, the present utility model discloses a battery module, comprising:

The module block 1 comprises a plurality of electric cores 11 which are sequentially arranged, wherein the electric cores 11 of two adjacent module blocks 1 are aligned one by one, and the polar posts at the adjacent ends of the two electric cores 11 aligned by the two adjacent module blocks 1 are in a group.

The middle aluminum row 2 connects a group of poles in series to connect two aligned battery cores 11 of two adjacent module blocks 1, and it should be noted that one of the two adjacent poles is a positive pole and the other is a negative pole; an intermediate FPC3 connected to the intermediate aluminum row 2; preferably, the middle FPC3 is connected to the middle aluminum row 2 through nickel plates 7, specifically, each middle aluminum row 2 is connected with a nickel plate 7, each nickel plate 7 is connected to the middle FPC3, one end of the middle FPC3 extends outwards to the outside of the module 1, and the end is the output end of the middle FPC 3.

Referring to fig. 3, all the electric cores 11 of the two module blocks 1 form a series circuit, specifically, two rows of poles at the outermost sides of the two outside module blocks 1 are a first pole row and a second pole row respectively, the positive pole and the negative pole of each pole of the first pole row are self-connected, and the positive pole and the negative pole of each pole of the second pole row are self-connected (refer to the series connection of a plurality of direct current power supplies, which is the prior art and is not further described); in the arrangement direction of the battery cells 11, one end is the front end of the module block 1, and the other end is the rear end of the module block 1; in this embodiment, the right end is the front end, and the left end is the rear end.

More preferably, the middle aluminum row 2 is of a square structure, preferably, the middle aluminum row 2 is of a rectangular structure, and four corners of the middle aluminum row 2 of the rectangular structure are provided with round corners or chamfers for preventing the collision of the sharp corners; the width dimension of the middle aluminum row 2 with the square structure in the thickness direction of the battery cell 11 is smaller than the thickness dimension of the battery cell 11, so that the edge of the middle aluminum row 2 in the width direction is prevented from protruding out of the edge of the battery cell 11, and contact short circuit between adjacent middle aluminum rows 2 is prevented.

When the number of the battery cells 11 of the module block 1 is even, the front end of the first pole row and the poles of the battery cells 11 at the rear end are respectively used for being connected with an external circuit; the outer aluminum rows 4 are used for connecting one group of poles of the first pole row, wherein the other poles of the first pole row are two by two; the poles of the second pole row are two by two in one group, and the outer aluminum row 4 connects one group of poles of the second pole row; two outer FPCs 5, one outer FPC5 being connected to an outer aluminum row 4 of the first pole row and a pole of the first pole row for connection with an external circuit; the other outside FPC5 is connected to the outside aluminum row 4 of the second post row.

Or alternatively

When the number of the battery cells 11 of the module block 1 is an odd number, the poles of the battery cells 11 at the front end of the first pole row and the poles at the rear end of the second pole row are respectively used for being connected with an external circuit;

The outer aluminum rows 4 are used for connecting one group of poles of the first pole row, wherein the other poles of the first pole row are two by two; the other poles of the second pole row are two by two, and the outer aluminum row 4 connects one group of poles of the second pole row;

Two outer FPCs 5, one outer FPC5 being connected to the outer aluminum row 4 of the first pole row and the pole of the first pole row for connection with an external circuit; the other outside FPC5 is connected to the outside aluminum row 4 of the second pole row and the outside FPC5 of the pole for connecting with the external circuit.

Further, the external aluminum row 6 is further included, the external aluminum row 6 is connected to a pole connected with an external circuit, and the external FPC5 is connected to the external aluminum row 6; as can be seen from the above, a battery module has two poles for connecting with external circuits, at least one of the poles is connected with an external aluminum row 6, and in this embodiment, the two poles for connecting with external circuits are all connected with the external aluminum row 6.

Similarly, the outer FPC5 is connected to the outer aluminum row 4 and the outer aluminum row 6 through nickel plates 7, specifically, each outer aluminum row 4 and each outer aluminum row 6 are connected with a nickel plate 7, each nickel plate 7 is connected to the outer FPC5, one end of the outer FPC5 extends outwards to the outside of the module block 1, and the end is the output end of the outer FPC 5.

From the above, it should be noted that:

first, all the cells 11 of all the module blocks 1 are connected in series to form a series battery module, and the cells 11 of other module blocks 1 must be connected in series between two cells 11 of the same module block 1.

Secondly, if the number of the electric cores of the module blocks 1 is even, it can be known that the poles at the front end of the first pole row are used for being connected with an external circuit, after all the electric cores 11 of all the module blocks 1 are connected in series, the poles at the rear end of the first pole row are necessarily used as connection points for connecting with another external circuit, and it can also be understood that the input and output connection points of the power supply circuits of all the module blocks 1 after being connected in series are respectively the front end poles and the rear end poles of the first pole row.

Thirdly, if the number of the electric cores of the module blocks 1 is odd, it can be known that the poles at the front end of the first pole row are used for being connected with an external circuit, after all the electric cores 11 of all the module blocks 1 are connected in series, the poles at the rear end of the second pole row are necessarily used as connection points for connecting with another external circuit, and it can also be understood that the input and output connection points of the power supply circuits of all the module blocks 1 after being connected in series are respectively the front end pole of the first pole row and the rear end pole of the first pole row.

In this embodiment, preferably, the number of the battery cells 11 of the module block 1 is 14, and the number of the module blocks 1 is two, it can be known that the number of the middle aluminum rows 2 is 14, the 14 middle aluminum rows 2 connect two adjacent poles of two adjacent battery cells 11 of two module blocks 1, correspondingly, 14 nickel sheets 7 are arranged on the middle FPC3, and the 14 nickel sheets 7 are connected with 17 middle aluminum rows 2 one by one.

In particular, in the arrangement direction from the front end to the rear end, the first and last poles of the first pole row are used as the inlet end and the outlet end of the battery module formed by the two-ground module block 1, so that the first pole and the fourteenth pole of the first pole row are respectively connected with the external aluminum row 6, and then the second pole to the thirteenth pole of the first pole row are grouped into two-by-two groups: the second pole and the third pole, the fourth pole and the fifth pole, the sixth pole and the seventh pole, the eighth pole and the ninth pole, the tenth pole and the eleventh pole, the twelfth pole and the thirteenth pole are two by two in one group, and one group of the poles is connected through the middle and outer aluminum bars 4, so that the two external aluminum bars 6 and the six outer aluminum bars 4 are connected with one outer FPC 5.

In addition, the specific grouping of the second pole row is: the first pole and the second pole, the third pole and the fourth pole, the fifth pole and the sixth pole, the seventh pole and the eighth pole, the ninth pole and the tenth pole, the eleventh pole and the twelfth pole, the thirteenth pole and the fourteenth pole are two by two in one group, one group of the poles is connected through the middle and outer aluminum rows 4, so that the seven outer aluminum rows 4 are connected with the other outer FPC 5.

Further, the middle FPC3 and the outer FPC5 are provided with output ends, fuses 8 and/or connectors 9 are arranged on the output ends, preferably, the fuses 8 are patch fuses, the space occupation of the patch fuses is smaller, and the specification of the fuses 8 is 500mA; thus, the patch fuse has the advantages of small space occupation and the like; other types of fuse 8, such as a tab fuse, may be selected and will not be discussed further herein.

Specifically, the connector 9 on the outer FPC5 on the first pole row is preferably a B-key connector 9 with 20 pins (and pin count) (the type of the connector 9 is not described here again as it is); the connector 9 on the outer FPC5 on the second post row is preferably a 12pin connector 9; furthermore, the connector 9 on the intermediate FPC3 is preferably an a-key connector 9 of 20pin (the type of the connector 9 belongs to the prior art and is not described here any more); it should be noted that, the number of pins of all the connectors 9 is set according to the circuit configuration, that is, there are several circuit connection points, and at least several pins of the connectors 9 are selected correspondingly, of course, since the connectors 9 are standard components, if the circuit connection points are seven, eight pins of the connectors 9 are selected; preferably, in order to improve the voltage-resistant line of the connector 9, the pins of the same row are connected to the circuit connection points at intervals, as above, if the circuit connection points are seven, the double-row pin connector 9 is selected, and the number of pins of each row is seven.

More preferably, the fire-retardant cable further comprises a reinforcing plate 10, wherein the output end is arranged on the reinforcing plate 10, so that the output end is supported, namely, the connector 9 and the fuse 8 are arranged on the reinforcing plate 10, and preferably, the reinforcing plate 10 is made of no plastic material and has a fire-retardant grade of FR4; the reinforcing plate 10 is provided with fixing holes to which fixing members (including but not limited to screws) are fixed to fix the reinforcing plate.

In addition, the top of the module block 1 is provided with a plastic sucking bracket 12, and the middle aluminum row 2, the middle FPC3, the outer aluminum row 4, the outer FPC5 and the outer aluminum row 6 are provided with the top of the plastic sucking bracket 12; specifically, the suction bracket 12 is provided with a groove for mounting the above components, so as to facilitate the mounting of the above components.

The specific dimensions of the plastic uptake support 12, the middle FPC3, the outer FPC5 and the reinforcing plate 10 may be set according to actual needs, and in this embodiment, the following are preferable:

The length of the suction plastic support 12 is 595mm-605mm, preferably 599mm, the width is 565mm-575mm, preferably 572mm, and the thickness is 5.5mm-6.5mm, preferably 5.9mm.

The length of the middle FPC3 is 600mm-620mm, preferably 613mm, and the width is 20mm-30mm, preferably 25mm, and the size of the reinforcing plate 10 at the output end of the middle FPC3 is: the length is 80mm-90mm, preferably 88.3mm, the width is 20mm-30mm, preferably 23mm, the thickness is 0.3mm-0.7mm, preferably 0.5mm, and the output end is provided with two fuses 8; the length of the outer FPC5 of the first pole row is 600mm-620mm, preferably 606.2mm, and the width is 20mm-30mm, preferably 23mm, and the size of the reinforcing plate 10 at the output end of the outer FPC5 is: the length is 80mm-90mm, preferably 80.7mm, the width is 20mm-30mm, preferably 23mm, the thickness is 0.3mm-0.7mm, preferably 0.5mm, and the output end is provided with two fuses 8; the length of the outer side FPC5 of the second pole row is 550mm-570mm, preferably 563.6mm, the width is 20mm-30mm, preferably 21mm, and the size of the reinforcing plate 10 at the output end of the outer side FPC5 is as follows: the length is 95mm-105mm, preferably 100mm, the width is 20mm-30mm, preferably 23mm, and the thickness is 0.3mm-0.7mm, preferably 0.5mm.

Furthermore, if the number of module blocks 1 is greater than two, for example, three module blocks 1 are used, the arrangement mode of the two outer aluminum rows 4 is unchanged, and will not be described again here.

A battery pack comprises the battery module and a box body, wherein the battery module is arranged in the box body, and the battery module is in the prior art and is not described herein.

The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. A battery module, comprising:

The battery pack comprises at least two parallel module blocks (1), wherein each module block (1) comprises a plurality of battery cells (11) which are sequentially arranged, the battery cells (11) of two adjacent module blocks (1) are aligned one by one, and a group of polar columns is arranged at the adjacent ends of the two battery cells (11) of the two adjacent module blocks (1) aligned;

an intermediate aluminum row (2) connecting a group of the poles in series to connect two aligned cells (11) of two adjacent module blocks (1);

an intermediate FPC (3) connected to the intermediate aluminum row (2);

The two rows of poles at the outermost sides of the two outer side module blocks (1) are respectively a first pole row and a second pole row; the positive and negative poles of the first pole row are self-connected, and the positive and negative poles of the second pole row are self-connected so as to form a series circuit with all the electric cores (11) of the two module blocks (1).

2. The battery module according to claim 1, wherein,

In the arrangement direction of the battery cells (11), one end is the front end of the module block (1), and the other end is the rear end of the module block (1);

When the number of the electric cores (11) of the module block (1) is even, the poles of the front end and the rear end electric cores (11) of the first pole row are respectively used for being connected with an external circuit;

The solar battery further comprises an outer aluminum row (4), wherein the other poles of the first pole row are in pairs, and the outer aluminum row (4) connects one group of poles of the first pole row; the poles of the second pole row are two by two in one group, and the outer aluminum row (4) connects one group of poles of the second pole row;

The solar cell further comprises two outer FPC (5), wherein one outer FPC (5) is connected with an outer aluminum row (4) of the first pole row and the pole of the first pole row for connecting with an external circuit; the other outside FPC (5) is connected with an outside aluminum row (4) of the second pole row;

Or alternatively

When the number of the electric cores (11) of the module block (1) is an odd number, the poles of the electric cores (11) at the front end of the first pole row and the poles at the rear end of the second pole row are respectively used for being connected with an external circuit;

The solar battery further comprises an outer aluminum row (4), wherein the other poles of the first pole row are in pairs, and the outer aluminum row (4) connects one group of poles of the first pole row; the other poles of the second pole row are two by two in one group, and the outer aluminum row (4) connects one group of poles of the second pole row;

The high-voltage power supply further comprises two outer FPC (5), wherein one outer FPC (5) is connected with an outer aluminum row (4) of the first pole row and the pole of the first pole row for connecting with an external circuit; the other outside FPC (5) is connected to the outside aluminum row (4) of the second pole row and the outside FPC (5) of the pole, which is used for being connected with an external circuit, of the second pole row.

3. The battery module according to claim 2, further comprising an external aluminum row (6);

The external aluminum row (6) is connected to the pole connected with an external circuit;

The outer FPC (5) is connected to the external aluminum row (6).

4. A battery module according to claim 3, further comprising a nickel plate (7);

The middle FPC (3) is connected to the middle aluminum row (2) through the nickel sheet (7);

The outer FPC (5) is connected to the outer aluminum row (4) and the outer aluminum row (6) through the nickel sheet (7).

5. A battery module according to claim 4, characterized in that the middle FPC (3) and the outer FPC (5) are provided with output terminals;

The output end is provided with a fuse (8);

And/or the number of the groups of groups,

The output end is provided with a connector (9).

6. A battery module according to claim 5, characterized in that the fuse (8) is a patch fuse.

7. The battery module according to claim 5, further comprising a reinforcing plate (10),

The output end is arranged on the reinforcing plate (10) so that the output end is supported.

8. The battery module according to claim 1, wherein the middle aluminum row (2) has a square structure, and the width dimension of the middle aluminum row (2) in the thickness direction of the battery cell (11) is smaller than the thickness dimension of the battery cell (11).

9. The battery module according to any one of claims 3-8, further comprising a plastic uptake support (12), wherein the plastic uptake support (12) is arranged at the top of the module block (1), and the middle aluminum row (2), the middle FPC (3), the outer aluminum row (4), the outer FPC (5) and the external aluminum row (6) are arranged on the plastic uptake support (12).

10. A battery pack comprising the battery module according to any one of claims 1 to 9 and a case, the battery module being disposed in the case.